Add AudioRecord timestamps

Bug: 13569372
Bug: 22886739
Change-Id: Ibc81afefb733d23676a632a0f2da31163fdbe05f
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index ae8bbb9..ad47277 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -1324,6 +1324,8 @@
             // rolling index that is never cleared
             int32_t                             mRsmpInRear;    // last filled frame + 1
 
+            ExtendedTimestamp                   mTimestamp;
+
             // For dumpsys
             const sp<NBAIO_Sink>                mTeeSink;